Metals -> Structural steel -> Alloy structurall steel Characteristics of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ).
Material : 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) Substitute: 37ÕÍ3ÌÔÀ Classification : Alloy structurall steel
Chemical composition in % of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) . C Si Mn Ni S P Cr Mo V Cu 0.33 - 0.4 0.17 - 0.37 0.25 - 0.5 1.3 - 1.7 max 0.025 max 0.025 1.3 - 1.7 0.3 - 0.4 0.1 - 0.18 max 0.3
Temperature of critical points of the grade 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ).
Ac1 = 740 , Ac3 (Acm ) = 780 , Ar3 (Arcm ) = 400 , Ar1 = 300
Mechanical properties under Ò=20o Ñ of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Bar Æ 25 1180 1080 12 50 780 Guenching and drawing
Brinell hardness of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) (annealing) , HB 10 -1 = 269 MPa
Physical properties of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 2.12 36 278 100 2.04 12.5 36 496 335 200 1.98 12.8 35 508 432 300 1.86 13.3 35 525 517 400 1.73 13.5 34 538 613 500 1.66 14 33 567 720 600 1.56 14.3 31 601 825 700 1.39 14.5 30 672 940 800 1.27 11 29 697 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 36KH2N2MFÀ ( 36H2N2MFÀ, 36Õ2Í2ÌÔÀ ) . Weldability: hard weldability. Flakes : predisposed Temper brittleness: not predisposed
Specification :
Mechanical properties : s â - Tensile strength , [MPa] s T - Yield stress, [MPa] d 5 - Specific elongation at fracture , [ % ] y - Reduction of area , [ % ] KCU - Impact strength , [ kJ / m2 ] HB - Brinell hardness , [MPa]
Physical properties : T - Test temperature , [Grade] E - Young modulus , [MPa] a - Coefficient of linear expansion
(range 20o - T ) , [1/Grade] l - Termal (heat) condition coefficient , [Watt/(m·Grade)] r - Density , [kg/m3 ] C - Specific heat
( range 20o - T ), [J/(kg·Grade)] R - Electrical resistance , [Ohm·m]
Weldability : without limitations - welding is done without heating and subsequent heat treeting limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing
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